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US 12,544,005 B2Granted
Method for detecting demineralization of tooth substance
AssigneeIvoclar Vivadent AG
InventorsAlwin Kienle, Steffen Nothelfer
Life of this patent
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Abstract
A method for detecting demineralization of a tooth substance, including the steps of irradiating (S101) a structured light pattern onto the tooth substance; detecting (S102) a light intensity of the light pattern remitted from the volume of the tooth substance; and determining (S103) demineralization of the tooth substance based on the detected light intensity.
Claims10
A method of detecting demineralization of a tooth substance, comprising the steps of:
- irradiating, with a projector, a structured light pattern comprising a stripe pattern, a dot pattern or a grid pattern and/or a periodic structure onto the tooth substance;
- detecting, with a detector, intensity of remitted light of the structured light pattern and/or intensity amplitude (Rsfd) of the remitted light from a volume of the tooth substance, wherein the remitted light is a product of by elastic scattering;
- determining, with a controller, a demineralization of the tooth substance based on the detected intensity of the remitted light and/or the intensity amplitude (Rsfd) of the remitted light;
- and
- displaying on a display, with a controller, images of degree of demineralization of the volume of the tooth substance;
- wherein a spatial geometry of the demineralization of the tooth substance is determined by a modeled lesion from a plurality of remitted light patterns each having a different spatial frequency.
3 more elements
A dental device for detecting demineralization of a tooth substance, comprising:
- a projector for irradiating a structured light pattern onto the tooth substance, wherein the structured light pattern comprises a stripe pattern, a dot pattern or a grid pattern and/or a periodic structure;
- a detector for detecting intensity of remitted light of the structured light pattern and/or intensity amplitude (Rsfd) of the remitted light from a volume of the tooth substance, wherein the remitted light is a product of elastic scattering;
- a controller for determining a demineralization of the tooth substance based on the detected intensity of the remitted light and/or the intensity amplitude (Rsfd) of the remitted light;
- and
- a display for displaying images of degree of demineralization of the volume of the tooth substance,
- wherein a spatial geometry of the demineralization of the tooth substance is determined by a modeled lesion from a plurality of remitted light patterns each having a different spatial frequency.
3 more elements
Dependencies are inferred from the claim text.